emulation - Mode in which a system imitates another one in order to exploit the same programs or to provide the same results. Emulation facilitates conversion.www.discoverscs.com/ee.html

emulation - is the replicating of functionality of an obsolete system [5] . For example, emulating an Atari 2600 on a Windows system or emulating WordPerfect 1.0 on a Macintosh. Emulators may be built for applications, operating systems, or hardware platforms. ...en.citizendium.org/wiki/Digital_preservation

emulation - an absolutely precise simulation of something, so exact that it is equivalent to the original (for example, many computers emulate obsolete computers to run their programs). The Star Trek replicator is an examplewww.nanotech-industries.com/industry-terms.php